The top-mounted, high-sensitivity GPS and Galileo receiver keeps track of your dog’s location, and the Alpha TT 25 collar transmits that location via VHF up to 9 miles away with updates as frequent as every 2.5 seconds when used with a compatible handheld (sold separately). Train your dog with 18 levels of continuous or momentary stimulation plus audible tone and vibration (when used with a compatible handheld; sold separately). When using dynamic tracking, get up to 68 hours with the standard battery pack and up to 136 with the extended battery pack (sold separately). The Alpha TT 25 GPS dog collar easily pairs with Garmin dog tracking handhelds, such as the Alpha series and Pro 550 Plus (sold separately). In the box: Alpha TT 25 dog collar (base device), Standard rechargeable Li-ion battery pack, Standard VHF antenna and keeper, Charging clip, Charging/data cable, Metal contact points kit and Documentation

Features:

• A rugged yet slim design is universally sized to fit large and small breeds.
• Get extended battery life with dynamic tracking based on your dog’s movement.
• Receive automatic software updates when Alpha TT 25 is charging and connected to your network with Wi-Fi technology.
• Unit Dimensions 3.2" x 1.8” x 1.4” (8.1 x 4.5 x 3.5 cm). 6.75oz